CVE-2019-9228 Denial of service in n/a
Remote attackers can cause denial of service on AudioCodes Mediant devices by exhausting SSH and TELNET connection slots via unauthenticated attempts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-9228?
CVE-2019-9228 is a high-severity denial of service vulnerability in n/a, published on 19 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered on AudioCodes Mediant 500L-MSBR, 500-MBSR, M800B-MSBR and 800C-MSBR devices with firmware versions F7.20A at least to 7.20A.252.062. The (1) management SSH and (2) management TELNET features allow remote attackers to cause a denial of service (connection slot exhaustion) via 5 unauthenticated connection attempts, because the maximum number of unauthenticated clients that can be configured is 5. NOTE: the vendor's position is that this is a "design choice.
Which versions are affected by CVE-2019-9228?
It affects 4 products.
Products include Audiocodes Median 500-Msbr Firmware, Audiocodes Median 500l-Msbr Firmware, Audiocodes Median 800c-Msbr Firmware, Audiocodes Median M800b-Msbr Firmware.
How do I fix CVE-2019-9228?
No fix has been published for CVE-2019-9228 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-9228 being exploited?
There is no known exploitation of CVE-2019-9228 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8844-xm63-xpv5.